Equity benchmark indices extended rally for the third consecutive session on Wednesday, March 19. The BSE Sensex opened a gap-up at 75,473.17, higher by 171.91 points, or 0.23 per cent. Likewise, the NSE Nifty 50 opened with a gap-up of 40.65 points, or 0.18 per cent. Both the indices traded in green around the midday session.